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v3.21.2

Accounts and Long-Term Receivable (Details) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2021 USD ($) | Jun. 30, 2021 USD ($) agreement | Mar. 31, 2021 USD ($) agreement | Sep. 30, 2021 USD ($) | Sep. 30, 2020 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Accounts receivable | $ 18,698,000 |  |  | $ 18,698,000 | $ 13,362,000
Long-term receivable | $ 7,522,000 |  |  | $ 7,522,000 | 3,642,000
Minimum |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Maturity term of accounts and long term receivables |  |  |  | 1 year |
Vendor Agreement |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Number of agreements increase in accounts and long term receivable | 2 | 2 | 2 |  |
Payments to be received from over next four years |  | $ 5,200,000 | $ 9,000,000.0 |  |
Payments to be received from over next two years | $ 2,500,000 |  |  |  |
Period of payments to be received for accounts and long term receivable | 2 years | 2 years | 4 years |  |
Net revenue recorded | $ 200,000 | $ 400,000 | $ 500,000 |  |
Financing receivables |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Accounts receivable | 6,500,000 |  |  | $ 6,500,000 | 2,300,000
Long-term receivable | 7,500,000 |  |  | 7,500,000 | $ 3,500,000
Long term receivables interest rate |  |  |  |  | 4.50%
Amount of allowance for credit losses or impairments with a contractual maturity of over one year | 0 |  |  | 0 | $ 0
Accounts and long-term receivable past due | 0 |  |  | 0 | 0
Activity in allowance for credit losses for accounts and long-term receivables |  |  |  | 0 | 0
Construction Contractor, Receivable, Excluding Contract Retainage, Fiscal Year Maturity [Abstract] |  |  |  |  |
2022 | 6,927,000 |  |  | 6,927,000 |
2023 | 4,674,000 |  |  | 4,674,000 |
2024 | 1,560,000 |  |  | 1,560,000 |
2025 | 1,560,000 |  |  | 1,560,000 |
Total payments | 14,721,000 |  |  | 14,721,000 |
Less: unearned interest income | 753,000 |  |  | 753,000 |
Total, net of unearned interest income | $ 13,968,000 |  |  | $ 13,968,000 |
Financing receivables | Minimum |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Maturity term of accounts and long term receivables |  |  |  | 1 year |
Financing receivables | Other Income |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Accounts And Long Term Receivable, Interest Income |  |  |  | $ 547,000 | $ 453,000

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